DO

sudo apt-get update
sudo apt-get install nodejs
sudo apt-get install npm
sudo apt-get install nodejs-legacy
npm install -g nodemon

sudo apt-get update
sudo apt-get install build-essential
sudo apt-get install tcl8.5
wget http://download.redis.io/releases/redis-3.0.1.tar.gz
tar xzf redis-3.0.1.tar.gz
cd redis-3.0.1
make
sudo make install
cd utils
sudo ./install_server.sh


sudo service redis_6379 start
sudo service redis_6379 stop
redis-cli


wget http://ffmpeg.org/releases/ffmpeg-2.6.3.tar.bz2
tar -xvjf ffmpeg-2.6.3.tar.bz2
cd ffmpeg-2.6.3
./configure --enable-libmp3lame
su -c 'make install'